EP1840010B1 - Structure portante pour un véhicule automobile - Google Patents

Structure portante pour un véhicule automobile Download PDF

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Publication number
EP1840010B1
EP1840010B1 EP20070000650 EP07000650A EP1840010B1 EP 1840010 B1 EP1840010 B1 EP 1840010B1 EP 20070000650 EP20070000650 EP 20070000650 EP 07000650 A EP07000650 A EP 07000650A EP 1840010 B1 EP1840010 B1 EP 1840010B1
Authority
EP
European Patent Office
Prior art keywords
profile
support structure
structure according
section
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP20070000650
Other languages
German (de)
English (en)
Other versions
EP1840010A1 (fr
Inventor
Dieter Schiebel
Andrea Lippold
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1840010A1 publication Critical patent/EP1840010A1/fr
Application granted granted Critical
Publication of EP1840010B1 publication Critical patent/EP1840010B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/088—Details of structures as upper supports for springs or dampers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/008—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of light alloys, e.g. extruded

Definitions

  • Such a support structure for a motor vehicle is in the DE 33 46 986 A1 described.
  • the support structure has a cast from light metal longitudinal support member, which is used in the front end. It is designed as an upwardly open profile, that is U-shaped and is closed by a closure element called a closing element.
  • the longitudinal support member has a connecting portion, of which a first connecting portion of the attachment of a front longitudinal member and a second connecting portion of the attachment of a sill is used.
  • On the first connecting portion of the designed as a hollow profile front side member is attached.
  • the sill is received by the second connecting portion.
  • a similarly ausgestaltetes longitudinal support member is inserted in the region of the rear carriage in the support structure. However, this is executed without closing element, but has the first and second connecting portion.
  • On the first connecting portion of the rear side member is attached. The sill is brought laterally to the second connecting portion of the longitudinal support member.
  • the object of the invention is to provide a support structure of the type mentioned, which is simple in construction and optimized in terms of rigidity.
  • the inventively designed second connecting portion serves for the connection of the side sill and on the other - for optimized side impact protection and Stiffness - forms a transverse support portion, which is realized by the profile with the closing element in terms of stiffness and side impact protection.
  • the second connecting portion is used in addition to the connection of the sill as attachment for a directed away from the sill cross member. Due to the configuration of the open profile with the closing element of the Quertragabites in the vehicle transverse direction as, preferably closed, hollow profile, that is formed like a carrier, and thus provides a support connection between the sill and the cross member attached to the transverse support portion.
  • the Quertragabites is formed by the fact that widens the open profile of the longitudinal support member, so that a corresponding distance between the outer sill and the direction away from it extending cross member can be bridged.
  • the open profile is closed in a particularly preferred embodiment by the closing element, which in addition to a lid for the open profile also has an upright, transverse to the longitudinal extension of the profile closing wall. In the longitudinal direction of the longitudinal support member thus forms the closing wall the conclusion of the open profile.
  • a closed hollow profile is formed by the lid, the closing wall and the open profile in a simple manner.
  • a closing element is used, which is U-shaped in cross-section and thus has two upright, transverse to the longitudinal extent of the profile extending closing walls, which are interconnected via the lid.
  • the rigidity of the Quertragabitess is further improved.
  • a further increase in stiffness is achieved with the features of claim 5 and / or 6.
  • the closing element - as described above - form a lid of the open profile. Accordingly, it is advantageous according to claim 8, when the cross member is placed on the closing element, in particular its cover, and connected thereto.
  • the cross member is designed as a bow and thus spans the center tunnel.
  • the executed as a bow cross member can be easily produced as a casting, as described in claim 10.
  • the closing element is designed according to claim 11 as a form sheet metal part and can be embossed, formed and / or deep drawn. Due to the particular choice of the manufacturing method for the individual elements of the support structure, ie the cast longitudinal support member, the closing element as a bent sheet metal part and the cast cross member, the complex support structure can be easily manufactured, wherein preferably all parts of the support structure is made of a light metal or a light metal alloy ,
  • Sills which are profiled seen in cross section, have a corresponding stiffness mainly in its longitudinal direction.
  • it is provided according to an embodiment variant specified in claim 13 to profile the profile wall of the open profile in the region of the second connection portion. Sill and profile wall fit so flat together.
  • the cast longitudinal support member can be made easier if it is designed continuously as an open profile.
  • so offers the advantageous possibility for a favorable attachment of the longitudinal member in the region of the first connection portion, for example by inserting the longitudinal member in the open profile.
  • FIGURE shows an exploded view of a detail of a support structure for a motor vehicle.
  • the longitudinal support member 2 has at its first end 5, which forms here a rear end, a first connecting portion 6 for the attachment of the rear side member 3. At its second end 7, which forms a front end here, the longitudinal support element 2 is equipped with a second connecting portion 8, which serves to fasten the sill 4.
  • a connecting element 8 ' Adjacent to the front end 7, a connecting element 8 'is provided, which is executed in a flange and connects to the floor assembly. Between the two connecting portions 6 and 8, a longitudinal support portion 9 of the longitudinal support member 2 extends.
  • the longitudinal support portion 9 has a strut mount 10, which is executed like a shell and has first attachment points 11 for a here not to be seen strut of a chassis. Further, within the longitudinal support portion 9 second attachment points 12 for a chassis, here the rear axle formed.
  • the side rail section 9 and / or the second connecting section 8 may comprise third connection points 12 'for a transmission.
  • the longitudinal support element 2 is designed as, in particular up, open profile 13, thus has in cross-section substantially a U-shape, the profile bottom 14 and the profile bottom 14 outgoing, upright profile walls 15th and 16.
  • the profile 13 could alternatively open bottom or side, so hat-shaped or C-shaped.
  • the profile wall 15 here forms an inner profile wall and the profile wall 16 constitutes an outer profile wall, which also has the strut mount 10 in a widening 17. Between the second connecting portion 8 and the strut mount 10, the outer profile wall 16 merges into a wall portion 18 directed away from the profile 13.
  • Both of the widening 17 and of the wall portion 18 still projects a mounting flange 19 approximately upright, which serves the attachment of an inner wheel well, not shown here.
  • the flange 19 may extend as far as the front connecting section 8, in particular up to the sill 4, and in the opposite direction into the first or rear connecting section 6.
  • From the inner profile wall 15 also goes from a mounting flange 20, which is directed inward, ie in the direction of the vehicle center longitudinal axis (not shown).
  • This mounting flange 20 is used to attach a one-piece or multi-part strike plate, not shown here, for the profile 13, which strike plate can extend from the first connecting portion 6 via the longitudinal support portion 9 to the second connecting portion 8 zoom.
  • a fastening receptacle 21 is formed for a transverse strut of the support structure 1, not shown here, which cross strut extends to a longitudinal support member, not shown here, which is associated with the opposite side of the vehicle.
  • This longitudinal support member, not shown, is therefore identical, but executed in mirror image to the longitudinal support element 2 shown.
  • the open profile 13 extends into the second connecting section 8, so that it can be seen as an extension 22 of the open profile 13. He therefore has both the profile bottom 14 and the inner and outer profile wall 15 and 16.
  • the sill 4 is attached externally. It can be provided that the outer profile wall 16 is profiled, ie at least two wall sections, here three wall sections 23, 24, 25 which enclose an angle to each other, which is not equal to 180 °. According profiled the sill 4 is formed so that it can fit form-fitting or flat on the outer profile wall 16 and the wall portions 23 to 25.
  • a closing element 27 is inserted into the extension 22 in the open profile 13, so that the open profile 13th is closed and represents a closed hollow profile.
  • This closing element 27 extends from the outer profile wall 16 to the inner profile wall 15 and has bent fastening strips 28 which can be connected to the inner or outer profile wall 15, 16.
  • the closing element 27 can completely cover the profile 13 in the region of the extension 22. In the exemplary embodiment shown, however, the closing element 27 has a smaller extension in the longitudinal direction LE than the extension 22.
  • the closing element has a cover 29 at least one, but preferably two upright, transverse to the longitudinal direction of the profile LE 13 closing walls 30 and 31, which extend to the profile bottom 14.
  • the closing element 27 is thus designed as an upside-down U-profile, which forms the closed hollow profile of the transverse support section 26 together with the profile bottom 14.
  • the connecting surface F2 is located between the inner profile wall 15 and the connection points 12 '.
  • one or more transverse reinforcement webs 32 may be formed on the profile bottom 13 and may extend into the profile walls 15 and / or 16. If a plurality of transverse reinforcement webs 32 are provided, they are at a distance from one another and run essentially parallel to one another. Between two transverse reinforcing webs 32, one or more longitudinal reinforcing webs 33 may be formed.
  • a transverse to the transverse support portion 26 is directed away from the sill 4 extending cross member 34 which is designed substantially arcuate for bridging a known center tunnel 35 and forms the center tunnel 35 at least in sections.
  • From a central arc portion 36 go laterally outwardly directed mounting feet 37 and 38, of which the mounting foot 37 is connected to the transverse support portion 26.
  • the mounting foot 37 is placed on the transverse support section 26, preferably on the cover 29 of the closing element 27 and connected thereto.
  • a third connection surface F3 is provided on the closing element 27, in particular on the cover 29 thereof, and a fourth connection surface F4 is provided on the attachment foot 37.
  • the cross member 34 is designed as a downwardly open profile, so - like the closing element 27 - as upside down U-profile. In the region of the mounting foot 37, the downwardly open profile of the cross member 34 is thus closed by the cover 29, so that a closed hollow carrier is formed.
  • an arcuate projection 39 can extend in one piece from the inner profile wall 15, thus forming a strike plate for the open profile of the cross member 34 at least in one section. This striking plate could alternatively be provided as a separate part.
  • the cross member 34 is like the longitudinal support member 2 as a molded part, in particular made of a light metal alloy or a light metal.
  • the closing element 27, on the other hand, is preferably produced as a deep-drawn, formed, bent or stamped shaped sheet metal part from a light metal or a light metal alloy.
  • the second connecting portion 8 is formed by a widening portion 40 of the open profile 13. That is, the width W of the profile 13 between the profile walls 15 and 16 increases.
  • the Wall section 18 with its flange 19 extending therefrom extends up to the wall section 42 of the outer profile wall 16.
  • the longitudinal support member 2 is designed continuously as an open profile 13, which thus extends from the first connecting portion 6 via the longitudinal support portion 9 to the second connecting portion 8.
  • the rear side member 3 is inserted for attachment to the open profile 13 and secured therein, while the sill 4 is attached to the outside of the connecting portion 8, in particular on the wall portion 16 '.
  • the extension 22, which forms the transverse support section 26 together with the closing element 27, thus serves, on the one hand, the end-side fastening of the sill 4 and also the attachment of the transverse support 34.
  • the transverse support section 26 - starting from the inner profile wall 15 - can extend through the widening section 40 extend outward in the direction of the sill 4, so that between the sill 4 and profile 13 and rear side member 3 is given a lateral offset. Seen in plan view, the longitudinal support element 2 could thus be realized T- or L-shaped. Incidentally, the parts 2, 3, 4, 27, 34 described here can be connected to one another by gluing, riveting, in particular punch riveting, and / or welding.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Claims (14)

  1. Structure portante (1) pour un véhicule automobile, comprenant un élément porteur longitudinal coulé (2), qui est réalisé au moins en partie sous forme de profilé ouvert (13), et qui présente en outre à chaque fois du côté de son extrémité une première portion de connexion (6) pour la fixation d'un support longitudinal (3) et une deuxième portion de connexion (8) pour la fixation d'un bas de marche (4) de la structure portante (1), et comprenant un élément de fermeture (27) fermant au moins en partie le profilé (13) de l'élément porteur longitudinal (2), caractérisée en ce que la deuxième portion de connexion (8) est réalisée sous la forme d'une prolongation (22) du profilé ouvert (13), en ce que la prolongation (22) forme conjointement avec l'élément de fermeture (27) une portion portante transversale (26) qui est orientée transversalement à l'étendue longitudinale (LE) de l'élément porteur longitudinal (2), et en ce que le bas de marche (4) ainsi qu'un support transversal (34) s'étendant à l'écart du bas de marche sont fixés sur la portion portante transversale (26).
  2. Structure portante selon la revendication 1, caractérisée en ce que la portion portante transversale (26) creuse est formé par le fait que le profilé ouvert (13) pour la deuxième portion de connexion (8) s'élargit dans une portion d'élargissement (40) et en ce que l'élément de fermeture (27) possède en plus d'un couvercle (29) au moins une paroi de fermeture (30, 31) dressée, s'étendant transversalement à l'étendue longitudinale (LE) du profilé (13).
  3. Structure portante selon la revendication 1 ou 2, caractérisée en ce que l'élément de fermeture (27) relie l'une à l'autre deux parois de profilé dressées (15, 16) du profilé (13), et est guidé avec sa paroi de fermeture (30, 31) jusqu'à un fond de profilé (14) du profilé (13).
  4. Structure portante selon l'une quelconque des revendications précédentes, caractérisée en ce que l'élément de fermeture (27) est réalisé en forme de U en section transversale et possède ainsi deux parois de fermeture (30, 31) qui sont connectées l'une à l'autre par le biais du couvercle (29).
  5. Structure portante selon l'une quelconque des revendications précédentes, caractérisée en ce qu'au moins une nervure de renforcement transversale (32) est réalisée sur le fond de profilé (14) du profilé (13) dans la deuxième portion de connexion (8).
  6. Structure portante selon l'une quelconque des revendications précédentes, caractérisée en ce que la nervure de renforcement transversale (32) s'étend jusque dans les parois de profilé (15, 16) du profilé (13) dans la région de la deuxième portion de connexion (8).
  7. Structure portante selon l'une quelconque des revendications précédentes, caractérisée en ce que le support transversal (34) est posé sur la portion portante transversale (26).
  8. Structure portante selon l'une quelconque des revendications précédentes, caractérisée en ce que le support transversal (34) est connecté à l'élément de fermeture (27) au niveau de la portion portante transversale (26).
  9. Structure portante selon l'une quelconque des revendications précédentes, caractérisée en ce que le support transversal (34) est réalisé sous forme d'arc (tunnel central 35) et forme une portion d'un tunnel central (35) de la structure portante (1).
  10. Structure portante selon l'une quelconque des revendications précédentes, caractérisée en ce que le support transversal (34) est réalisé sous forme de pièce coulée avec un profilé ouvert.
  11. Structure portante selon l'une quelconque des revendications précédentes, caractérisée en ce que l'élément de fermeture (27) est réalisé sous forme de pièce moulée en tôle.
  12. Structure portante selon l'une quelconque des revendications précédentes, caractérisée en ce que le bas de marche (4) est fixé du côté de son extrémité à la portion portante transversale (26).
  13. Structure portante selon l'une quelconque des revendications précédentes, caractérisée en ce que le bas de marche (4) est fixé sur une paroi de profilé profilée (16) du profilé (13).
  14. Structure portante selon l'une quelconque des revendications précédentes, caractérisée en ce que l'élément porteur longitudinal (2) est réalisé en continu sous forme de profilé ouvert (13).
EP20070000650 2006-03-31 2007-01-13 Structure portante pour un véhicule automobile Expired - Fee Related EP1840010B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610014979 DE102006014979A1 (de) 2006-03-31 2006-03-31 Tragstruktur für ein Kraftfahrzeug

Publications (2)

Publication Number Publication Date
EP1840010A1 EP1840010A1 (fr) 2007-10-03
EP1840010B1 true EP1840010B1 (fr) 2008-10-22

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Application Number Title Priority Date Filing Date
EP20070000650 Expired - Fee Related EP1840010B1 (fr) 2006-03-31 2007-01-13 Structure portante pour un véhicule automobile

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EP (1) EP1840010B1 (fr)
DE (2) DE102006014979A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007024172A1 (de) 2007-05-24 2008-11-27 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Tragstruktur eines Kraftfahrzeugs
DE102008062009A1 (de) 2008-12-12 2010-06-17 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Karosseriestruktur eines Hinterwagens
DE102008062003B4 (de) 2008-12-12 2023-01-05 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Karosseriestruktur
DE102011081430A1 (de) * 2011-08-23 2013-02-28 Bayerische Motoren Werke Aktiengesellschaft Karosserie eines Kraftfahrzeugs
DE102011081433B4 (de) * 2011-08-23 2022-11-03 Bayerische Motoren Werke Aktiengesellschaft Karosserie eines Kraftfahrzeugs mit einem Gussträger
DE102012001041A1 (de) 2012-01-20 2012-09-06 Daimler Ag Querträgerelement für eine Karosseriestruktur eines Personenkraftwagens
DE102012205967A1 (de) 2012-04-12 2013-10-17 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Herstellen einer Fahrwerks- oder Tragstrukturbaugruppe für ein Kraftfahrzeug sowie Einzelkomponente für eine nach diesem Verfahren herzustellende Fahrwerks- oder Tragstrukturbaugruppe
CN104768840B (zh) * 2012-10-24 2019-06-28 Ksm铸造集团有限公司 用于汽车后车架的模块系统
DE102014204563A1 (de) 2014-03-12 2015-09-17 Bayerische Motoren Werke Aktiengesellschaft Gewichtsreduzierende Oberflächenstrukturierung an Bauteilen hergestellt im Gussverfahren
FR3030431B1 (fr) * 2014-12-17 2017-01-13 Renault Sa Nœud de structure avant d'un vehicule automobile.
CN109204474A (zh) * 2018-11-09 2019-01-15 浙江众泰汽车制造有限公司 一种汽车后纵梁总成及汽车
CN112874633B (zh) * 2021-03-19 2022-10-11 重庆长安汽车股份有限公司 一种后车架连接件及其安装结构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3346986A1 (de) * 1983-12-24 1985-07-18 Fleck, Andreas, 2000 Hamburg Wagenkasten
DE19808392A1 (de) * 1997-09-06 1999-03-11 Volkswagen Ag Tragstruktur eines Kraftfahrzeugs
DE10236982A1 (de) * 2002-08-13 2004-02-26 Dr.Ing.H.C. F. Porsche Ag Tragstruktur einer Karosserie eines Kraftwagens
GB0319493D0 (en) * 2003-08-20 2003-09-17 Ford Global Tech Llc Motor vehicles
FR2882331B1 (fr) * 2005-02-21 2007-04-13 Renault Sas Agencement de tablier pour vehicule automobile

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Publication number Publication date
DE102006014979A1 (de) 2007-10-04
DE502007000176D1 (de) 2008-12-04
EP1840010A1 (fr) 2007-10-03

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